package com.mmall.common;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import java.io.Serializable;

/**
 *  服务端通用范
 * @param <T>
 */

@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证序列化json的时候，如果是null的对象，key也会消失
public class ServerResponse <T> implements Serializable {

    private int status;

    private String msg;

    private T data;   // 可指定也可以不指定 返回时可以指定范形的内容，正确；String

    // 或者不正确时，或许是其它类型


    private ServerResponse(int status) {
        this.status = status;
    }

    private ServerResponse(int status, T data) {
        this.status = status;
        this.data = data;
    }

    private ServerResponse(int status, String msg, T data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    private ServerResponse(int status, String msg) {
        this.status = status;
        this.msg = msg;
    }

   @JsonIgnore   // show in json 加注解就不会显示于json
    public boolean isSuccess(){

        return this.status==ResponseCode.SUCCESS.getCode();

    }

    public int getStatus(){
        return status;
    }

    public T getData(){
        return data;
    }

    public String getMsg(){
        return msg;
    }

    // 成功登录

    public static <T> ServerResponse<T> createBySuccess(){

        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());

    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg){

        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg);
    }

    public static <T> ServerResponse<T> createBySuccess(T data){

        return new ServerResponse<>(ResponseCode.SUCCESS.getCode(),data);

    }

    public static <T> ServerResponse<T> createBySuccess(String msg,T data){

        return new ServerResponse<>(ResponseCode.SUCCESS.getCode(),msg,data);
    }

  //

    public static <T> ServerResponse<T> createByError(){

        return new ServerResponse<T>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());
    }

    public static <T> ServerResponse<T> createByErrorMessage(String errormessage){

        return new ServerResponse<>(ResponseCode.ERROR.getCode(),errormessage);
    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorcode,String errormessage){

        return new ServerResponse<>(errorcode,errormessage);
    }





}
